<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>求字符串数组中每一项的长度</title>
</head>
<body>
<script>
    var array = ["changjiangdaxue","wenlixueyuan","jike5223","mengyvbo"];
    var newArray = [];
    for (var i = 0; i < array.length; i++) {
        newArray.push(array[i].length);
    }
    document.write(newArray);
</script>
</body>
</html>